Troubleshooting Guide - Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B Service Manual

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TROUBLESHOOTING GUIDE

PROBLEMS
(SYMPTOMS)
Major physical or electrical dam-
age is evident when the sheet
metal cover(s) are removed.
Machine is dead – no output – no
fans – no displays.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-
800-833-9353.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
OUTPUT PROBLEMS
1. Contact your local authorized
Lincoln Electric Field Service
Facility for technical assis-
tance.
1. Check the main input fuses. If
open, replace.
2. Make certain that the input
power switch (S1) is in the
"ON" position.
3. Check for proper input voltage
– must match the rating on the
machine nameplate.
4. Make certain the reconnect
panel is configured properly for
the applied voltage.
5. Check fuse (F1) in the recon-
nect panel. If faulty, replace
with 5-amp slow-blow fuse.
CAUTION
POWER WAVE 450
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
1. If fuse (F1) quickly fails, per-
form the Auxiliary
Transformer Primary Wiring
Harness Test.
2. If fuse (F1) does not fail, per-
form the Auxiliary
Transformer Test #1.
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